<p>Pakistani Muslims offer Eid al-Adha prayers outside the Red Mosque in Islamabad on Sept. 13, 2016. Muslims across the world celebrate the annual festival of Eid al-Adha, or the Festival of Sacrifice, which marks the end of the Hajj pilgrimage to Mecca and in commemoration of Prophet Abraham's readiness to sacrifice his son to show obedience to God.</p><p> AAMIR QURESHI/AFP/Getty Images
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